Traction-machine.



WITNESS:

F. B. MARVIN. TRACTION. MACHINE. APPLICATION FILED MAR. so. 1916.

v Patented Jan. 1, 1918.

I b 1 IfiVEfi/TOk Inf/2' gi Frulenck Bmmvm.

Arm/Mir.

F. B. MARVIN.

, IRAcTmu MACHINE; urucmoa FILED an. 30. mg.

2 SHEETS-SHEET 2.

WITNESS: INVENTOR Patented J an. 1, 1918..

ATTORNEY struction and inexpensive and a trailer wheel, whereby a traction .FBEDERIOK 1B. MARVIN, 0F YORK, Y.

mac'rron-macnm'n.

Application filed arch 30,

To all whom it may concern:

Be it known that I, Fnrinnnrcx B. MARVIN, a citizen of the United States, residing at New Yor city, in the county of New York and Statebf New York, have invented certain new and useful Improvements in Traction-Machines, of which the following is a specification.

My object by the present invention is to provide a self-driven traction machine that will be useful for a variety of purposes in connection with agricultural, gardm and other out-door work, and at the same time will be durable, simple and light in conto manufacture. Universality of usefulness beingone of the prime objects of my invention, a principal feature is a novel form of frame which may be adapted to various purposes, as the supporting or carrying of various tools, implements, utensils and the like in operative position thereon, and adjustable laterally to change the width of the machine for breaking up or otherwise operating the ground or growth thereon in widths varying in extent, and for guidance by hand as the op erator walks behind. Another feature of the invention consists in providing the frame with a bifurcated portion to receive a traction wheel, prefera ly driven by a motor arran ed within the same, and with a part ex ten laterally of the bifurcated portion and a ording a journal for an auxiliary wheel, preferably free to turn independentlyof the traction wheel thus to. facilitate turning the machine about. Another feature consists in forming the traction wheel as a drum closed at all points except centrally on one side (preferably the outside) to permit access to the engine and admit air for cooling the engine forced into the traction wheel through the opening provided centrally therein as above indicated, the means for causing the inflow of air for cooling the engine being a rotary fan element which also serves as a belt wheel when the engine is to be employed, as when the machine is standing stationary, for driving some other machine or implement, for instance, a grind stone, a circular saw,-etc. Still another feature is a novel construction and arrangement of a frame, a traction wheel, a laterally arranged auxiliary wheel machine is produced that may be hand-guided Specification of Letters Patent.

downwardly and channel iron which is secured to the piece f 1916. Serial mi. 87,714.

Patented Jan. 1, 1918. y

with facility and turned about by ease and convenience.

In the accompanying drawings,

Figure l is a plan view of the traction machine, showing as a cultivator; 4 a Fig. 2 is a front elevation thereof, partly 1n section;

Fig. 3 is a side elevation;

Fig. 4 is a fragmentary sectional view of the bifurcated portion of the frame;

Fig. 5 is a rear elevation of a part of the frame and one'of the traction wheels; and,

Fig. 6 is a side elevation of a modified form of what is shownin Fig. 5.

Generally stated, the frame of the machine includes a forward upright structure in which the traction and auxiliary wheels are journaled concentric with an axle arranged in said structure, a rear upright structure which is suitably connected with the forward upright structure by memberswhich in the present instance also afiord handles for guiding the machine, and which carries means in which the like implements are supported, said structures, the means for supporting the cultivators and the axle all being extensible laterally. The forward and rear upright structures are for the most part composed of channel iron.

The forward upright structure includes the rigid section A and the extension section A. The section A is constructed as follows: a is a horizontal piece of channel iron, having its channel opening downwardly, and b, c and 01 three vertical pieces of channel iron which are secured to the piece a by the angle irons c shown in Fig. 4 so that they depend perpendicularly from the piece a, the piece I) at the end of the piece .a and having its channel open outwardly and the pieces 0 and d back to back. The pieces 12 and 0 form with the piece a a fork or bifurcated part of is thus constructed: f is a horizontal piece of channel iron, having its channel open 9 is a vertical piece of near one end thereof by angle irons h, shown the same adapted for use cultivator or the the frame. The section Av dotted in Fig. 2 but substantially like the angle irons, e. 'The piece 7 of the'section A fits into the piece a of the section A, so that the two sections of the forward uprightv structure may be adjusted telescopically.

. \t1on permitting the piece 5 to be adjusted vertically with reference to piece j and also to be removable. Section B has its parts m, n, 0 and g), respectively corresponding in construction and function to the parts 'i, j,

i is andZ. The piece m'of section B'vis telescoped into piecez' of section B.

' For connecting the front upright structure with the rear upright structure I provide the members G and D. D may be a suitable length of channel iron or its equivalent which at its forward end underlapsthe Y has generally the shape of a telescoped portions of the sections A A of the forward uprightstructure but which crosses over the telescoped portions of the rear upright structure, being secured to said structures where it intersects them by the bolts E and F, which penetrate slots in the sections A A and B B. Member C also handle, the portion thereof C constituting the handle proper having; an inwardly projecting ofiset C which is rigidly secured to the upright j, as by riveting or otherwise Member C is bolted or otherwise rigidly secured to the back face of the piece a of the section A, and formed preferably integral with it is a rearwardly projecting and downwardly curving extension C whose lower end is bent ofi' laterally, .as at C; The handles may be braced at their rear ends by the cross-piece H. I is a rearwardly extending downwardly curved member corresponding to the extension C and bolted or otherwise secured to the rear face of piece a of section B. Mcmhers C and I are preferably riveted to the outer faces of the pieces y" and n, as best shown in Fig. 3. i l i A telescopic axle g is arranged in the depending portions 6, a, (Z and g of the for ward upright structure, 9" being an eXtensionthereof'which is preferably'capable of rotation independently of the portion '9. 9n

this axle outwardly of the piece 9 of the forward upright structure is jonrnaled the auxiliary wheel 7, and with the axle as its axis of rotation there is arranged in the fork of traction wheel a in the form of a hollow drum which is closed on the inside and also on the outside, so as to prevent dirt from working into it, excepting for the central hole I? in its outer wall. Contained in the the forward upright structure a traction wheel is a ga'solene or other motor it speeds to be accomplished both with respect to the traction wheel a and the axle extension 9. The latter carries a fan-wheel m, thefan portion of which will serve to cool the motor to when it is of the internal combustion type, and the periphery a) of which may serve both as a guard for the f'anand a pulley to receive a belt for' driving some other irnpleinent, as a rotary saw, grind stone, and the like The trailer wheels'y may be respectively journal'ed in forks e which maybe suitably pivoted to the 'inemhers C and I; in Figs. 3 and 5 the fork z for the trailer wheel cor responding to the traction wheel a is pivoted in the-turned oil end of the extension C of handle C hut in Fig. 6 said fork is pivoted in a special bracket 2 bolted to said extension C the hrackethaving a longitudinal slot 3 receiving the and thus permitting the latter to be adjusted forward and backward. v

5 denotes grip pieces, one of which may be movable, for use in controlling certain of the connections w, and 6 denotes buttons for use in controlling the motor as for starting, sparking etc; the connections between said parts 5 and and connections w and the pivot i of the fork e ieo motor may be conducted through the housscoped -n1einbers J J connected by a bolt or bolts 8 so as to be extensible telescopically, the same being secured to the pieces d and g of the frame, so as to be vertically adjust able therein or removable therefrom, by bolts 9 in substantially the same manner as the bolts 70 and 0 connect the sections B Bto said pieces (Z and 9. Members J J are longitudinally slotted and in their slots receive the laterally adjustable cultivator tools 10 or other implements. 7

According to the usage to which the inachine is to be put, one or both of the structures B B and J J may be adjusted vertically in the pieces at and g to any desired height, or removed entirely.

The free end of the axle extension 9' may be provided with a threaded. nipple 11 for the attachment thereto of a for driving the various implements of the class capable of bein actuated through a connection of the flexible cable type.

A fuel supply tank for the en shown at 12 in Fig. 1.

be guided by-hand from tion element but the wheel which prinei pally sustains the load, rotates free of the motor -and the trailer wheel is only incidentallyconcerned in supportin'gj the load and 1s swiveled to the frame ack of the tractor wheels and on an upright pivot. The turning abo vating or other work where the progress is back and forthin parallel courses, is obviously effected and with great facility and convenience; the machine, after one course is traversed, is swung about on the tractor wheel as a center, thus bringing the machine squarely in position to traversethe next course.

Having thus fully described my invention, what I claim as new and desire to secure'by Letters Patent is 1. In a traction machine, the combination of a traction wheel, a frame in which the wheel is held to rotate in a singleupright plane,saidframe promoting rigid to the rear of the wheel, a motor on the frame op-- eratively connected with the wheel, a trailer wheel pivotally connected to the frame behind the traction wheel to swivel on an up right pivot, and an auxiliary freely rotating wheel journaled in the frame beside the traction wheel, said frame affording back of the traction wheel means to grip and turn the machine about by hand.

2'. In a traction machine, the combination of a traction wheel, a frame in which the wheel is held-to rotate in a single upright plane, said frame projecting rigidto the operatively connected with the wheel, a trailer wheel pivotally connected to the frame behind the traction wheel to swivel on an upright pivot, and an auxiliary freely rotating wheel journaled in the frame beside the traction wheel, said frame aiiording back of the traction wheel means. to grip and turn the machine partof the frame in which the auxiliary flexible cable- The machine is peculiarlyewell adsqitedr ov hind with ease and without tiring the operator because-H8 center of turning .to right orleft is essen tially the wheel s, which is not only the -trac-' tending part and because; wheel 7* in culti- "necting said members,

. structure,

:means, attached to the tor in the wvheel about by hand, the

aled being laterally adjustable wit'hi erence to the part of said frame wh ihh' the] traction wheel isjour'naled.

' '3; .am i n, "a me-inc ud bifurcated-portion and havin" I a: va'rlj ttl ereofextending laterally-fromsaid; ifur'cated portion and being laterallyj adj ustable, a

traction wheel-..-journaledfin "saidbifurcated ,portion of thegirame, means .tq: driize the traction wheehand" another wheel ournaled f e' m In combination, a structure, a rearward upright structure, and

means to rigidly connectsaid structures, a a horizontal supporting means for parts to be carried by the machine adjustable vertically in therearward structure, a traction wheel journaled- 'in the forward structure and means, attached to for driving the traction wheel.

5. In combination, a forward upright structure, a rearward upright structure comprising'uprightspaced members, and a vertically adjustable supporting member conmeans to rigidly conmembers' with the forward A a traction wheel journaled in the forward structure and means, attached to the forward structure, for driving the traction wheel.

6. In combination, a frame," an axle therein, a hollow traction'wheel journaled on the axle, said wheel having in one side a central 'ope' ing penetrated by the axle,

frame at and extendin through said opening and'arranged in said wheel, for driving the traction wheel.

7 In combination, a frame, a hollow traction wheel journaled therein, said wheel having in one side a central opening, an engine housed in the wheel and attached to the frame at said opening,- a rotary fan arranged opposite said opening, and power transmitting connections between the engine nect said upright and said wheel and fan. rear ofthe wheel, a motor on the frame 1 8. In combination, a hollow traction wheel, a frame in which said wheel is journaled, an element to. be rotated journaled coaxially with and projecting from said wheel,.a.-mo-

attached to the frame, and independent power transmitting connections between the motor and the wheel and said element. Y

- In testimony whereof I afiix my signature.

FREDERICK 'B. MARVIN.

,jorward; upright the forward structure,

*beside the tractionwheel -in the laterally ex-s ion. 

